CN203056648U - High-capacity power bank with multiple battery packs - Google Patents

Abstract

The utility model discloses a large-capacity power bank with a plurality of battery packs, which is provided with a casing, a charging interface and an output interface are arranged on the casing, an electronic control device is arranged inside the casing, and the electronic control device is provided with A microprocessor, a state display circuit connected to the microprocessor, a charging management circuit connected to the charging interface, the charging management circuit connected to the battery switching circuit, and the battery switching circuit connected to the battery , the batteries are provided with a plurality of mutually independent battery packs, the battery switch circuit is connected to the microprocessor, and the microprocessor controls the battery packs to work in turn, and the batteries The switching circuit is connected to a discharge management circuit for managing the power consumption process, and the discharge management circuit is connected to the output interface. The state display circuit is provided with buttons and a plurality of LED display lamps, and the LED display lamps are used to display the power condition of the battery pack.

Description

High-capacity power bank with multiple battery packs

technical field

The utility model relates to a large-capacity charging treasure with a plurality of battery packs.

Background technique

With the rapid development of communication technology, the functions of people's mobile phones are becoming more and more perfect, from the initial monochrome screen display to the current true color screen display, and the size of the screen is getting larger and larger, so people can not only use it to print Phone calls and text messages can also be used to listen to music, watch videos, and even watch TV. At the same time, various functions are also enriched. The 3G Internet access function allows people to connect to the Internet and obtain information anytime and anywhere; the radio function allows people to listen to radio broadcasts anytime and anywhere; the game function allows people to rest and entertain anytime and anywhere; the GPS positioning function allows people to know themselves at any time The position of the car can also be used for driving positioning, etc. The functions of mobile phones are becoming more and more abundant, and they have become people's digital terminals, making people more and more convenient and efficient, but there is a problem that is gradually exposed. Because the mobile phone pursues beauty and lightness, the battery capacity is generally relatively small, and the practical time is generally about one day. This brings great inconvenience and trouble to the people who are in the mobile state.

Contents of the invention

The purpose of the utility model is to provide a large-capacity charging treasure with multiple battery packs. Multiple battery packs are used to form a battery cell. The output voltage of a single battery pack is low, and higher output conversion efficiency can be obtained. It has a large battery capacity, The advantage of providing more power.

The technical scheme that the utility model solves its technical problem adopts is:

A large-capacity charging treasure with multiple battery packs is equipped with a casing, and the casing is provided with a charging interface connected to an external power supply and an output interface for externally outputting power supply, and an electronic control device is arranged inside the casing, and the electronic control device A microprocessor for centralized control is provided, a state display circuit connected to the microprocessor is connected to the charging management circuit with the charging interface, the charging management circuit is connected to the battery switching circuit, and the battery The switching circuit is connected to the battery cells, and the battery cells are provided with multiple sets of mutually independent battery packs. The battery cell switching circuit is connected to the microprocessor, and the microprocessor controls the battery packs to work in turn. The battery switching circuit is connected to a discharge management circuit for managing the power consumption process, and the discharge management circuit is connected to the output interface.

The battery pack adopts a rechargeable battery.

The state display circuit is provided with a button and a plurality of LED display lamps, the LED display lamp corresponds to the battery pack, and the button is used to start the LED display lamp to display the status of the battery pack Battery status.

The cell switching circuit is provided with a cell parameter detection circuit and a multi-way switch.

The charging management circuit is provided with a charging current control circuit and a charging switch circuit.

The discharge management circuit is provided with a discharge current control circuit and a discharge switch circuit.

The beneficial effects of the utility model are mainly manifested in: 1. The battery cell has a large capacity and can provide more power; 2. The battery cell is divided into multiple battery packs, and the output voltage of a single battery pack is low, so that higher output conversion efficiency can be obtained.

Description of drawings

Figure 1 is an outline drawing of a large-capacity charging treasure with multiple battery packs;

Fig. 2 is a functional block diagram of a large-capacity power bank with multiple battery packs.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

Referring to Fig. 1-2, a large-capacity power bank with multiple battery packs is provided with a casing 1, and the casing 1 is provided with a charging interface 2 connected to an external power supply and an output interface 3 for externally outputting power supply. The shell 1 plays the role of accommodation and protection, and is made of plastic material, which can reduce weight, is insulated, and is easy to shape.

The inside of the housing 1 is provided with an electronic control device, the electronic control device is provided with a microprocessor 4 for centralized control, and a state display circuit 7 connected to the microprocessor 4 is connected to the charging interface 2 A charging management circuit 5, the charging management circuit 5 is connected to the battery switching circuit 6, the battery switching circuit 6 is connected to the battery, the battery switching circuit 6 is connected to the microprocessor 4, the The cell switching circuit 6 is connected to a discharge management circuit 8 for managing the power consumption process, and the discharge management circuit 8 is connected to the output interface 3 .

The battery cells are provided with a plurality of mutually independent battery packs, as shown in FIG. 2 , a first battery pack 9 , a second battery pack 10 , and a third battery pack 11 are provided. The battery pack adopts a rechargeable battery, and the microprocessor 4 controls the battery pack to work in turn.

The charging management circuit 5 is provided with a charging current control circuit and a charging switch circuit. The charging current control circuit is used to detect the magnitude of the charging current of the battery pack, and control its magnitude, so as to ensure that the battery pack can be fully charged within a specified time without being damaged or overheated; The charging switch circuit described above has a shutdown function, which can stop the charging process and automatically cut off the charging circuit when an abnormal situation occurs.

The cell switching circuit 6 is provided with a cell parameter detection circuit and a multi-way switch. The cell parameter detection circuit is used to detect the voltage and temperature of the battery pack, and transmit them to the microprocessor 4. These two parameters are used to judge whether the charging of the battery pack is completed, And whether the discharge is over; the multi-way switch is controlled by the microprocessor 4, which battery pack is selected to be connected to the charge management circuit 5, or the discharge management circuit 8, and all batteries can also be turned off Group.

The discharge management circuit 8 is provided with a discharge current control circuit and a discharge switch circuit. The discharge current control circuit is used to detect the magnitude of the discharge current of the battery pack, and control its magnitude, so as to ensure that the battery pack works within the rated parameter range during the external discharge process without damage or heat . The discharge switch circuit has a shutdown function, which can stop the discharge process and automatically cut off the discharge circuit when an abnormal situation occurs.

The state display circuit 7 is provided with buttons and a plurality of LED display lamps. Each battery pack is provided with an LED display lamp corresponding to it. Under normal circumstances, the LED display lamp is not lit to save power. After the button is pressed, the microprocessor will Under the control of 4, light the described LED display light to show the power condition of each battery pack.

During the charging process, the charging interface 2 is connected to an external power source, the charging switch circuit of the charging management circuit 5 is turned on, and the microprocessor 4 first selects the first battery pack through the battery switching circuit 6 9 to charge; after the charging of the first battery pack 9 is completed, the microprocessor 4 selects the second battery pack 10 until all the battery packs are charged, and then lights the LED display lamp for prompting . During the discharge process, the amount output interface 3 is connected to an external device that needs to be charged, the discharge switch circuit of the discharge management circuit 8 is turned on, and the microprocessor 4 first selects the first battery through the battery switching circuit 6. A battery pack 9 is discharged; after the discharge of the first battery pack 9 is finished, the microprocessor 4 selects the second battery pack 10 until all the battery packs are discharged, and then flashes the LED display light Prompt.

To sum up, the utility model provides a large-capacity power bank with multiple battery packs. Multiple battery packs are used to form batteries. The output voltage of a single battery pack is low, and higher output conversion efficiency can be obtained. Large capacity, can provide more power, and provide backup power for the electrical equipment of people who go out.

Claims (6)

1. the big capacity charging that has a plurality of battery pack is precious, shell is set, the charging inlet of connection external power source and the output interface of external out-put supply are set on the described shell, it is characterized in that: the inside of described shell arranges electronic-controlled installation, central controlled microprocessor is carried out in described electronic-controlled installation setting, the status display circuit that is connected with described microprocessor, be connected charge management circuit with described charging inlet, described charge management circuit connects electric core commutation circuit, described electric core commutation circuit connects electric core, described electric core arranges the separate battery pack of many groups, described electric core commutation circuit connects described microprocessor, described microprocessor is controlled described battery pack and is taken turns to operate, described electric core commutation circuit connects and is used for the discharge management circuit that electric process is used in management, and described discharge management circuit connects described output interface.

2. the big capacity charging treasured with a plurality of battery pack as claimed in claim 1 is characterized in that: described battery pack employing rechargeable battery.

3. the big capacity with a plurality of battery pack as claimed in claim 1 charges precious, it is characterized in that: described status display circuit arranges button and a plurality of LED display lamp, the corresponding described battery pack of described LED display lamp, described button is used for starting described LED display lamp, to show the electric weight situation of described battery pack.

4. the big capacity charging with a plurality of battery pack as claimed in claim 1 is precious, and it is characterized in that: described electric core commutation circuit arranges electric core parameter detecting circuit and variable connector.

5. the big capacity charging with a plurality of battery pack as claimed in claim 1 is precious, and it is characterized in that: described charge management circuit arranges charging current control circuit and charge switch circuit.

6. the big capacity charging with a plurality of battery pack as claimed in claim 1 is precious, and it is characterized in that: described discharge management circuit arranges discharge current control circuit and discharge switching circuit.

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